A battery uses electro chemical cells to transform chemical energy into electricity. Batteries are typically used to power electronics such as flashlights, watches, radios, toys and many other electronic devices. Batteries can be disposable as well as rechargeable. Here at outdoor shopping you will be relieved to find that we only sell the best household name brands on the market. Commonly referred to as,lithium ion battery, AA batteries, rechargeable batteries, AAA batteries, 12 volt battery, and 9 volt batteries. Great for electronics, recharging, toys, gear, radios, walkie talkies, games, remote controls, and hearing aids.